The President of a Company Wants to See If the New

question 71

Essay

The president of a company wants to see if the new anti-smoking campaign is having any influence on his employees. A sample of 100 employees who smoked prior to the campaign is taken. Thirty-six employees said they smoked less, 15 employees said they smoked more, and 49 employees said there was no change.
a.State the null and alternative hypotheses.
b.Test the null hypothesis at the 1% level of significance.

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Definitions:

National Average

The mean value calculated from the available data that represents a norm or benchmark across a country.

Divorce Rate

The divorce rate is a statistical measure that represents the number of divorces per unit of population within a specified time period or demographic.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the true value of an unknown population parameter.

Population Proportion

The fraction or percentage of a population that exhibits a particular characteristic or attribute.